splunk-security_content/docs/_stories/xmrig.md

title, last_modified_at, toc, toc_label, tags

title	last_modified_at	toc	toc_label	tags
XMRig	2021-05-07	true		Splunk Enterprise Splunk Enterprise Security Splunk Cloud Endpoint Actions on Objectives Command and Control Exploitation Installation

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Description

Leverage searches that allow you to detect and investigate unusual activities that might relate to the xmrig monero, including looking for file writes associated with its payload, process command-line, defense evasion (killing services, deleting users, modifying files or folder permission, killing other malware or other coin miner) and hacking tools including Telegram as mean of command and control (C2) to download other files. Adversaries may leverage the resources of co-opted systems in order to solve resource intensive problems which may impact system and/or hosted service availability. One common purpose for Resource Hijacking is to validate transactions of cryptocurrency networks and earn virtual currency. Adversaries may consume enough system resources to negatively impact and/or cause affected machines to become unresponsive. (1) Servers and cloud-based (2) systems are common targets because of the high potential for available resources, but user endpoint systems may also be compromised and used for Resource Hijacking and cryptocurrency mining.

• Product: Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud
• Datamodel: Endpoint
• Last Updated: 2021-05-07
• Author: Teoderick Contreras, Rod Soto Splunk
• ID: 06723e6a-6bd8-4817-ace2-5fb8a7b06628

Narrative

XMRig is a high performance, open source, cross platform RandomX, KawPow, CryptoNight and AstroBWT unified CPU/GPU miner. This monero is seen in the wild on May 2017.

Detections

Name	Technique	Type
Attacker Tools On Endpoint	None	TTP
Deleting Of Net Users	None	TTP
Disable Windows App Hotkeys	None	TTP
Disabling Net User Account	None	TTP
Download Files Using Telegram	None	TTP
Enumerate Users Local Group Using Telegram	None	TTP
Excessive Attempt To Disable Services	None	Anomaly
Excessive Service Stop Attempt	None	Anomaly
Excessive Usage Of Cacls App	None	Anomaly
Excessive Usage Of Net App	None	Anomaly
Excessive Usage Of Taskkill	None	Anomaly
Executables Or Script Creation In Suspicious Path	None	TTP
Hide User Account From Sign-In Screen	None	TTP
Icacls Deny Command	None	TTP
ICACLS Grant Command	None	TTP
Modify ACL permission To Files Or Folder	None	TTP
Process Kill Base On File Path	None	TTP
Schtasks Run Task On Demand	None	TTP
Suspicious Driver Loaded Path	None	TTP
Suspicious Process File Path	None	TTP
XMRIG Driver Loaded	None	TTP

Reference

• https://github.com/xmrig/xmrig
• https://www.getmonero.org/resources/user-guides/mine-to-pool.html
• https://thedfirreport.com/2020/04/20/sqlserver-or-the-miner-in-the-basement/
• https://blog.checkpoint.com/2021/03/11/february-2021s-most-wanted-malware-trickbot-takes-over-following-emotet-shutdown/

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